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JPL Small-Body Database Browser
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20227 (1997 WS35)
Classification: Main-belt Asteroid          SPK-ID: 2020227
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07607238633980036 3.3105e-08  
a 2.516338634409569 1.0153e-08 au
q 2.324914749650998 8.4139e-08 au
i 6.763076677988549 3.7527e-06 deg
node 55.08571938002942 3.5509e-05 deg
peri 193.0687349713948 4.6103e-05 deg
M 306.9207734907417 3.0715e-05 deg
tp 2458815.468160402567
(2019-Nov-27.96816040)		 0.00012445 TDB
period 1457.981640546812
3.99		 8.8241e-06
2.416e-08		 d
yr
n .2469166894755842 1.4944e-09 deg/d
Q 2.707762519168139 1.0925e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2059  
   data-arc span      10790 days (29.54 yr)  
   first obs. used      1989-10-26  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48996  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:50:38  

Additional Information
 Earth MOID = 1.31167 au 
 Jupiter MOID = 2.29868 au 
 T_jup = 3.445 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO384928  
diameter diameter 5.833 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20227 (1997 WS35)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WS35 = 1989 UM6 = 2000 TQ2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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